Bluetooth not working in Raspberry Pi 3B+ with Xubuntu 18.04

[shaunakvyas1]

I am using Raspberry Pi with Xubuntu 18.04 running in it. When I enable the bluetooth using its icon, I am not able to open the bluetooth adaptor for detecting and connecting bluetooth devices.

The

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hciconfig -a

command gives following output:

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shaunak@Xubuntu-RPi:~$ hciconfig -a
hci0:	Type: Primary  Bus: SDIO
	BD Address: 00:00:00:00:00:00  ACL MTU: 0:0  SCO MTU: 0:0
	DOWN 
	RX bytes:0 acl:0 sco:0 events:0 errors:0
	TX bytes:0 acl:0 sco:0 commands:0 errors:0
	Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
	Packet type: DM1 DH1 HV1 
	Link policy: 
	Link mode: SLAVE ACCEPT 

The

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sudo hciconfig hci0 up

command gives following output:

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shaunak@Xubuntu-RPi:~$ sudo hciconfig hci0 up
[sudo] password for shaunak: 
Can't init device hci0: Input/output error (5)

I referred and applied the solutions given in following links, but there is no result:
1. https://www.raspberrypi.org/forums/view ... p?t=171999
2. https://www.raspberrypi.org/forums/view ... hp?t=96001

[shaunakvyas1]

I also tried few more commands. Here are the results:

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shaunak@Xubuntu-RPi:~$ hcitool dev
Devices:  ["Blank Line"]

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shaunak@Xubuntu-RPi:~$ bluetoothd
D-Bus setup failed: Connection ":1.59" is not allowed to own the service "org.bluez" due to security policies in the configuration file

[/code]

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shaunak@Xubuntu-RPi:~$ bluetoothd -d -n
bluetoothd[2906]: Bluetooth daemon 5.48
bluetoothd[2906]: src/main.c:parse_config() parsing /etc/bluetooth/main.conf
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “DiscoverableTimeout” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “PairableTimeout” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “Privacy” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “Name” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “Class” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “DeviceID” in group “General”
bluetoothd[2906]: src/main.c:parse_config() Key file does not have key “ReverseServiceDiscovery” in group “General”
D-Bus setup failed: Connection ":1.98" is not allowed to own the service "org.bluez" due to security policies in the configuration file
bluetoothd[2906]: Unable to get on D-Bus

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shaunak@Xubuntu-RPi:~$ bluetooth -v
bluetooth = on

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shaunak@Xubuntu-RPi:~$ hciconfig
hci0:	Type: Primary  Bus: SDIO
	BD Address: 00:00:00:00:00:00  ACL MTU: 0:0  SCO MTU: 0:0
	DOWN 
	RX bytes:0 acl:0 sco:0 events:0 errors:0
	TX bytes:0 acl:0 sco:0 commands:0 errors:0

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shaunak@Xubuntu-RPi:~$ hcitool scan
Device is not available: No such device

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shaunak@Xubuntu-RPi:~$ sudo hciconfig hci0 reset
Can't init device hci0: Input/output error (5)

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shaunak@Xubuntu-RPi:~$ dmesg | grep "Bluetooth"
[   11.188876] Bluetooth: Core ver 2.22
[   11.189007] Bluetooth: HCI device and connection manager initialized
[   11.189033] Bluetooth: HCI socket layer initialized
[   11.189046] Bluetooth: L2CAP socket layer initialized
[   11.189090] Bluetooth: SCO socket layer initialized
[   11.205925] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
[   16.028576] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   16.028586] Bluetooth: BNEP filters: protocol multicast
[   16.028617] Bluetooth: BNEP socket layer initialized

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shaunak@Xubuntu-RPi:~$ sudo bluetoothctl
Agent registered
[bluetooth]# scan on
No default controller available
[bluetooth]# 

I reinstalled bluez, bluetooth and blueman, but still I am facing the same problem of not being able to detect the on board bluetooth adaptor.

[Douglas6]

Rather than throwing random Bluetooth commands at it, try this one:

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systemctl status hciuart

and post the results.

[shaunakvyas1]

@Douglas6
Here is the result:

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shaunak@Xubuntu-RPi:~$ systemctl status hciuart
Unit hciuart.service could not be found.

[shaunakvyas1]

Voila ! I finally am able to start bluetooth.

Here are the commands:

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root@Xubuntu-RPi:/home/shaunak# sudo hciattach /dev/ttyAMA0 bcm43xx 921600
bcm43xx_init
Cannot open directory '/etc/firmware': No such file or directory
Patch not found, continue anyway
Set Controller UART speed to 921600 bit/s
Device setup complete

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shaunak@Xubuntu-RPi:~$ sudo systemctl restart bluetooth

[Douglas6]

You might try installing pi-bluetooth.

[argo86]

hello,
this is not my native language
these rows of commands will remove some bluetooth errors and allow you to make a connection with your phone

I hope it will be useful

sudo apt-get update
sudo apt-get upgrade

bluetoothctl -v

sudo apt-get install libusb-dev libdbus-1-dev libbluetooth-dev libglib2.0-dev libudev-dev libical-dev libreadline-dev libsbc-dev libasound2-dev libortp-dev -y
sudo apt-get install pulseaudio-module-bluetooth
sudo apt-get install bluez-obexd

sudo wget www.kernel.org/pub/linux/bluetooth/bluez-5.50.tar.xz
sudo tar xvf bluez-5.50.tar.xz && cd bluez-5.50
sudo ./configure --prefix=/usr --mandir=/usr/share/man --sysconfdir=/etc --localstatedir=/var --enable-experimental
sudo make -j4
sudo make install

sudo nano /etc/systemd/system/dbus-org.bluez.service
ExecStart=/usr/lib/bluetooth/bluetoothd -C
ExecStartPost=/usr/bin/sdptool add SP

sudo nano /etc/bluetooth/main.conf
DisablePlugins = pnat

sudo reboot
bluetoothctl -v